Preheat the air fryer to 400°F (200°C) for 3 minutes if needed.Pat the shrimp dry and place them in a large mixing bowl.Toss with olive oil, garlic powder, onion powder, smoked paprika, Italian seasoning, salt, and black pepper until evenly coated.Arrange the shrimp in a single layer in the air fryer basket.Cook for 5–6 minutes, shaking the basket halfway through, until the shrimp are pink, opaque, and cooked through.Transfer to a serving plate, drizzle with fresh lemon juice, garnish with chopped parsley, and serve immediately.